Elbow for flexible duct



FIG. 1 is a perspective view of an elbow for flexible duct showing my new design;

FIG. 2 is a left side elevational view thereof, the right side is a mirror image thereof;

FIG. 3 is a front elevational view thereof; the top is a mirror image thereof;

FIG. 4 is a back elevational view thereof; the bottom is a mirror image thereof;

FIG. 5 is a left side elevational view thereof; the right side is a mirror image thereof;

FIG. 6 is a front elevational view thereof; the top is a mirror image thereof; and,

FIG. 7 is a back elevational view thereof; the bottom is a mirror image thereof.

The broken line showing of a duct, tie strap and an air device in FIGS. 2–4 is included for the purpose of illustrating use and environment and forms no part of the claimed design. 

The ornamental design for an elbow for flexible duct, as shown and described. 